In ∆PQR, right angled at Q and ∠P = ∠R, then sin P cos R + cos P sin R is
1
1/√2
√3/2
1/2
By angle sum property ∠P = ∠R = 45o
cos45o = 1/√2 , sin 45o = 1/√2, substituting these values, we get
sin P cos R + cos P sin R = 1
In ΔPQR, right angled at Q and P = R, then sin P cos R + cos P sin R is